IFD 5 Series & IFD 4 Series Touch Screen GPS/NAV/COM

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Fuel Remaining Calculation

Printed From: Avidyne
Category: Avidyne General
Forum Name: IFD 5 Series & IFD 4 Series Touch Screen GPS/NAV/COM
Forum Description: Topics on Avidyne's IFD 5 Series and IFD 4 Series Touch Screen GPS/NAV/COM
URL: http://forums.avidyne.com/forum_posts.asp?TID=1671
Printed Date: 05 May 2024 at 9:11pm
Software Version: Web Wiz Forums 12.01 - http://www.webwizforums.com

Topic: Fuel Remaining Calculation

Posted By: jveatch
Subject: Fuel Remaining Calculation
Date Posted: 15 Jan 2019 at 11:54am

In my 1977 Cardinal RG, I find that THE most reliable indication of fuel remaining is the amount shown on the Avidyne IFD550. This has been verified by repeated physical measurements on the ground of each fuel tank with a calibrated stick, and certainly NOT by the fuel gauges in the aircraft. However, I do find that when I fill up fuel, the amount I am able to add is about 5% more than I would have expected based on the indication on the IFD550. What is the procedure that I can use to modify the calculation the IFD550 is using based on fuel flow?

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jveatch
Cardinal RG N177JV

Replies:

Posted By: oskrypuch
Date Posted: 15 Jan 2019 at 2:39pm

You would need to make the adjustment in your fuel flow device, the so-called K-factor.

The IFD just accepts the data it sends.

* Orest

Posted By: jveatch
Date Posted: 15 Jan 2019 at 3:09pm

Thank you!

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jveatch
Cardinal RG N177JV